Design Engineering DEI 51408 Interior Insulation & Damping Kit

The Design Engineering DEI 51408 Interior Insulation & Damping Kit is a custom-cut, vehicle-specific solution engineered to reduce heat, vibration, and unwanted noise inside the cabin. Part of DEI's trusted Boom Mat product family, this kit combines proven damping material and thermal insulation to deliver a quieter, more comfortable driving experience.

Key Features:

• Pre-cut damping material precisely sized for targeted interior coverage — no trimming required
• Boom Mat 2mm damping material eliminates structure-borne vibrations, squeaks, and rattles
• Thermal insulation layer blocks radiated heat from floors and firewalls
• Reduces road, tire, and engine noise penetrating the cabin
• Easy, straightforward installation with peel-and-stick adhesive backing
• Designed for use on floors, firewalls, and other interior panels

DEI's interior kits follow a two-step process: first, apply the damping material to kill vibrations and rattles; then layer the thermal insulation over floors and firewalls to block heat and provide additional acoustic control. The result is a noticeably cooler and quieter interior without the complexity of a custom fabrication job.

Design Engineering, Inc. has been a leader in thermal and acoustic control products since 1995, and the Boom Mat line is a go-to choice for performance enthusiasts, street rodders, and truck owners looking to improve in-cabin comfort.